That is QUITE the collection you have there!
EVERYTHING LOOKS FANTASTIC!!!
My favorites are the Viper and Cylon Raider.
I too have build models for friends. It is always a enjoyable to see the look on their faces (and their reactions) when I give the model to them. Not only that, but many times I have been asked: "How is it possible that this is made of paper?"
Thank you for sharing your GREAT collection with us.